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Tighten up the check for allowed key and group names. (#343191, Tommi

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2006-12-18  Matthias Clasen  <mclasen@redhat.com>

        * glib/gkeyfile.c: Tighten up the check for allowed
        key and group names.  (#343191, Tommi Komulainen)

        * tests/keyfile-test.c: Test handling of key and group names.
This commit is contained in:
Matthias Clasen 2006-12-18 07:29:56 +00:00 committed by Matthias Clasen
parent 81aee2e13e
commit 6b52690bb5
4 changed files with 273 additions and 47 deletions
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5
ChangeLog
View File

@ -1,5 +1,10 @@
2006-12-18 Matthias Clasen <mclasen@redhat.com>
* glib/gkeyfile.c: Tighten up the check for allowed
key and group names. (#343191, Tommi Komulainen)
* tests/keyfile-test.c: Test handling of key and group names.
* tests/Makefile.am: Don't use $RANDOM if the shell doesn't
have it. (#346373, Thomas Klausner)

2
docs/reference/glib/tmpl/keyfile.sgml
View File

@ -98,6 +98,8 @@ Note that in contrast to the
Entry Specification</ulink>, groups in key files may contain the same
key multiple times; the last entry wins. Key files may also contain
multiple groups with the same name; they are merged together.
Another difference is that keys and group names in key files are not
restricted to ASCII characters.
</para>
<!-- ##### SECTION See_Also ##### -->

107
glib/gkeyfile.c
View File

@ -136,6 +136,8 @@ static void g_key_file_add_key (GKeyFile
const gchar *value);
static void g_key_file_add_group (GKeyFile *key_file,
const gchar *group_name);
static gboolean g_key_file_is_group_name (const gchar *name);
static gboolean g_key_file_is_key_name (const gchar *name);
static void g_key_file_key_value_pair_free (GKeyFileKeyValuePair *pair);
static gboolean g_key_file_line_is_comment (const gchar *line);
static gboolean g_key_file_line_is_group (const gchar *line);
@ -260,6 +262,8 @@ void
g_key_file_set_list_separator (GKeyFile *key_file,
gchar separator)
{
g_return_if_fail (key_file != NULL);
key_file->list_separator = separator;
}
@ -747,6 +751,15 @@ g_key_file_parse_group (GKeyFile *key_file,
group_name = g_strndup (group_name_start,
group_name_end - group_name_start);
if (!g_key_file_is_group_name (group_name))
{
g_set_error (error, G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE,
_("Invalid group name: %s"), group_name);
g_free (group_name);
return;
}
g_key_file_add_group (key_file, group_name);
g_free (group_name);
}
@ -786,6 +799,15 @@ g_key_file_parse_key_value_pair (GKeyFile *key_file,
key = g_strndup (line, key_len - 1);
if (!g_key_file_is_key_name (key))
{
g_set_error (error, G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE,
_("Invalid key name: %s"), key);
g_free (key);
return;
}
/* Pull the value from the line (chugging leading whitespace)
*/
while (g_ascii_isspace (*value_start))
@ -1216,8 +1238,8 @@ g_key_file_set_value (GKeyFile *key_file,
GKeyFileKeyValuePair *pair;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (g_key_file_is_group_name (group_name));
g_return_if_fail (g_key_file_is_key_name (key));
g_return_if_fail (value != NULL);
group = g_key_file_lookup_group (key_file, group_name);
@ -1344,8 +1366,6 @@ g_key_file_set_string (GKeyFile *key_file,
gchar *value;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (string != NULL);
value = g_key_file_parse_string_as_value (key_file, string, FALSE);
@ -1470,8 +1490,6 @@ g_key_file_set_string_list (GKeyFile *key_file,
gsize i;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (list != NULL);
value_list = g_string_sized_new (length * 128);
@ -1514,7 +1532,6 @@ g_key_file_set_locale_string (GKeyFile *key_file,
gchar *full_key, *value;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (locale != NULL);
g_return_if_fail (string != NULL);
@ -1717,7 +1734,6 @@ g_key_file_set_locale_string_list (GKeyFile *key_file,
gsize i;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (locale != NULL);
g_return_if_fail (length != 0);
@ -1827,8 +1843,6 @@ g_key_file_set_boolean (GKeyFile *key_file,
gchar *result;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
result = g_key_file_parse_boolean_as_value (key_file, value);
g_key_file_set_value (key_file, group_name, key, result);
@ -1933,8 +1947,6 @@ g_key_file_set_boolean_list (GKeyFile *key_file,
gsize i;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (list != NULL);
value_list = g_string_sized_new (length * 8);
@ -2043,8 +2055,6 @@ g_key_file_set_integer (GKeyFile *key_file,
gchar *result;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
result = g_key_file_parse_integer_as_value (key_file, value);
g_key_file_set_value (key_file, group_name, key, result);
@ -2146,8 +2156,6 @@ g_key_file_set_integer_list (GKeyFile *key_file,
gsize i;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (list != NULL);
values = g_string_sized_new (length * 16);
@ -2257,10 +2265,8 @@ g_key_file_set_double (GKeyFile *key_file,
gchar result[G_ASCII_DTOSTR_BUF_SIZE];
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_ascii_dtostr ( result, sizeof (result), value );
g_ascii_dtostr (result, sizeof (result), value);
g_key_file_set_value (key_file, group_name, key, result);
}
@ -2360,8 +2366,6 @@ g_key_file_set_double_list (GKeyFile *key_file,
gsize i;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (list != NULL);
values = g_string_sized_new (length * 16);
@ -2455,6 +2459,8 @@ g_key_file_set_group_comment (GKeyFile *key_file,
{
GKeyFileGroup *group;
g_return_if_fail (g_key_file_is_group_name (group_name));
group = g_key_file_lookup_group (key_file, group_name);
if (!group)
{
@ -2574,6 +2580,8 @@ g_key_file_get_key_comment (GKeyFile *key_file,
GString *string;
gchar *comment;
g_return_val_if_fail (g_key_file_is_group_name (group_name), NULL);
group = g_key_file_lookup_group (key_file, group_name);
if (!group)
{
@ -2885,7 +2893,7 @@ g_key_file_add_group (GKeyFile *key_file,
GKeyFileGroup *group;
g_return_if_fail (key_file != NULL);
g_return_if_fail (group_name != NULL);
g_return_if_fail (g_key_file_is_group_name (group_name));
group = g_key_file_lookup_group (key_file, group_name);
if (group != NULL)
@ -3199,6 +3207,54 @@ g_key_file_line_is_comment (const gchar *line)
return (*line == '#' || *line == '\0' || *line == '\n');
}
static gboolean
g_key_file_is_group_name (const gchar *name)
{
gchar *p, *q;
if (name == NULL)
return FALSE;
p = q = (gchar *) name;
while (*q && *q != ']' && *q != '[' && !g_ascii_iscntrl (*q))
q = g_utf8_next_char (q);
if (*q != '\0' || q == p)
return FALSE;
return TRUE;
}
static gboolean
g_key_file_is_key_name (const gchar *name)
{
gchar *p, *q;
if (name == NULL)
return FALSE;
p = q = (gchar *) name;
while (*q && (g_unichar_isalnum (g_utf8_get_char (q)) || *q == '-'))
q = g_utf8_next_char (q);
if (*q == '[')
{
q++;
while (*q && (g_unichar_isalnum (g_utf8_get_char (q)) || *q == '-' || *q == '_' || *q == '.'))
q = g_utf8_next_char (q);
if (*q != ']')
return FALSE;
q++;
}
if (*q != '\0' || q == p)
return FALSE;
return TRUE;
}
/* A group in a key file is made up of a starting '[' followed by one
* or more letters making up the group name followed by ']'.
*/
@ -3211,12 +3267,7 @@ g_key_file_line_is_group (const gchar *line)
if (*p != '[')
return FALSE;
p = g_utf8_next_char (p);
/* Group name must be non-empty
*/
if (!*p || *p == ']')
return FALSE;
p++;
while (*p && *p != ']')
p = g_utf8_next_char (p);

206
tests/keyfile-test.c
View File

@ -747,8 +747,6 @@ static void
test_locale_string (void)
{
GKeyFile *keyfile;
GError *error = NULL;
gchar *value;
const gchar *data =
"[valid]\n"
@ -757,11 +755,7 @@ test_locale_string (void)
"key1[de_DE]=v1-de_DE\n"
"key1[de_DE.UTF8]=v1-de_DE.UTF8\n"
"key1[fr]=v1-fr\n"
"key1[en] =v1-en\n"
"[invalid]\n"
"key1[de=v1\n"
"key1[fr]]=v2\n"
"key1 [en]=v3\n";
"key1[en] =v1-en\n";
keyfile = load_data (data, G_KEY_FILE_KEEP_TRANSLATIONS);
@ -773,18 +767,6 @@ test_locale_string (void)
check_locale_string_value (keyfile, "valid", "key1", "fr_FR", "v1-fr");
check_locale_string_value (keyfile, "valid", "key1", "en", "v1-en");
value = g_key_file_get_locale_string (keyfile, "invalid", "key1", "de", &error);
check_error (&error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_free (value);
value = g_key_file_get_locale_string (keyfile, "invalid", "key1", "fr", &error);
check_error (&error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_free (value);
value = g_key_file_get_locale_string (keyfile, "invalid", "key1", "en", &error);
check_error (&error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_free (value);
g_key_file_free (keyfile);
/* now test that translations are thrown away */
@ -974,6 +956,180 @@ test_groups (void)
g_key_file_free (keyfile);
}
static void
test_group_names (void)
{
GKeyFile *keyfile;
GError *error = NULL;
const gchar *data;
gchar *value;
/* [ in group name */
data = "[a[b]\n"
"key1=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE);
/* ] in group name */
data = "[a]b]\n"
"key1=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE);
/* control char in group name */
data = "[a\tb]\n"
"key1=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE);
/* Unicode in group name */
data = "[\xc2\xbd]\n"
"key1=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_no_error (&error);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a[b", "key1", "123");
value = g_key_file_get_string (keyfile, "a[b", "key1", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_GROUP_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a]b", "key1", "123");
value = g_key_file_get_string (keyfile, "a]b", "key1", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_GROUP_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a\tb", "key1", "123");
value = g_key_file_get_string (keyfile, "a\tb", "key1", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_GROUP_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "\xc2\xbd", "key1", "123");
check_string_value (keyfile, "\xc2\xbd", "key1", "123");
g_key_file_free (keyfile);
}
static void
test_key_names (void)
{
GKeyFile *keyfile;
GError *error = NULL;
const gchar *data;
gchar *value;
/* [ in key name */
data = "[a]\n"
"key[=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE);
/* + in key name */
data = "[a]\n"
"key+foo=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE);
/* control char in key name */
data = "[a]\n"
"key\tfoo=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_PARSE);
/* Unicode in key name */
data = "[a]\n"
"\xc2\xbd=123\n";
keyfile = g_key_file_new ();
g_key_file_load_from_data (keyfile, data, -1, 0, &error);
g_key_file_free (keyfile);
check_no_error (&error);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a", "x", "123");
g_key_file_set_string (keyfile, "a", "key=", "123");
value = g_key_file_get_string (keyfile, "a", "key=", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a", "x", "123");
g_key_file_set_string (keyfile, "a", "key[", "123");
value = g_key_file_get_string (keyfile, "a", "key[", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a", "x", "123");
g_key_file_set_string (keyfile, "a", "key+foo", "123");
value = g_key_file_get_string (keyfile, "a", "key+foo", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a", "x", "123");
g_key_file_set_string (keyfile, "a", "key\tfoo", "123");
value = g_key_file_get_string (keyfile, "a", "key\tfoo", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a", "x", "123");
g_key_file_set_string (keyfile, "a", " key", "123");
value = g_key_file_get_string (keyfile, "a", " key", &error);
check_error (&error,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND);
g_key_file_free (keyfile);
keyfile = g_key_file_new ();
g_key_file_set_string (keyfile, "a", "x", "123");
g_key_file_set_string (keyfile, "a", "\xc2\xbd", "123");
check_string_value (keyfile, "a", "\xc2\xbd", "123");
g_key_file_free (keyfile);
}
static void
test_duplicate_keys (void)
{
@ -1027,9 +1183,19 @@ test_duplicate_groups2 (void)
g_key_file_free (keyfile);
}
static void
log_func (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer user_data)
{
}
int
main (int argc, char *argv[])
{
g_log_set_default_handler (log_func, NULL);
test_line_ends ();
test_whitespace ();
test_comments ();
@ -1045,6 +1211,8 @@ main (int argc, char *argv[])
test_duplicate_keys ();
test_duplicate_groups ();
test_duplicate_groups2 ();
test_group_names ();
test_key_names ();
return 0;
}